FENCE Issue with disabled fence

I had disabled the fence but my drone crashed and the logs shows HARD FENCE breached and it disarmed. How is this possible???

Post a link to the .bin log file

I can’t figure out how this is even a feature. I see no references to “hard fence” in the existing codebase, nor in any previous user reported issues. I also see no option for “disarm” as any failsafe action. Is this custom (or very old) firmware?

Could this be Advanced Failsafe? AFS_

Skybrush extended parameters?